The weather is different in different parts of the word.In some piaces it is()
题目
The weather is different in different parts of the word.In some piaces it is()
The weather is different in different parts of the word.In some piaces it is and in other it is (36)humid.If theweather is too dry,the weather is too dry,the land will not be(37)for animals or plants.In humid weather there may be too much(38)The rivers may go(39) their sides.The(40)may take the bridge away.If the rivers go over their sides,a lot of pepple may not have enough food.If there is very dry weather for a long(41),the river beds may be dry.
In(42)other parts of the world the weather may be very cold.There may be(43)When it snows,the trees,the buildings and everything look(44).In the winter the(45)are short and nights are long.(46)cold weather nights,when there are on ciouds or winds,the(47)is very clear(晴朗).And the moon and the stars are very(48)People may(49)their coats and go out for long walks.When they come back to their(50),they may be happy to have hot coffee and cakes by the fire
答案
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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